Neville retired from playing in 2011 after making 602 appearances for United and he soon moved across to the Sky Sports studio.
Football fans have taken well to his punditry, praising his insight and analysis of Premier League games.
He recently watched his old club lose 3-1 to Brighton and didn’t hold back when giving his assessment of United’s defence.
Jose Mourinho was linked with a wide range of centre-backs over the summer but the club failed to bring in any of their top defensive targets.
Neville believes the current backline simply isn’t good enough to challenge for the Premier League and says “one or two” key players still need to be brought in.
“I’m not making excuses for them. There has been £120m of investment in that back four. You’ve probably got the best goalkeeper in the world, so from a back-five point of view, you could argue there has been serious investment,” Neville said.
“However, they are not good enough. Collectively they are not good enough and individually they are not good enough.
“I know some of those lads and I’ve worked with them. I think they could operate in a really good back four, but they need one or two players of stature around them. Jose Mourinho knew that.
“Whatever the club think about not wanting to invest further in centre-backs because they’ve already got five etc, doesn’t matter. The end result is still the same. You still need a new back four, you still need new centre-backs.”
Gary Neville net worth: How much is the Sky Sports pundit worth?
According to The Sun, Neville’s net worth is in the region of £11million.
He was reportedly handed a £300,000 increase on his Sky Sports salary in 2016, taking his earnings to £1.5m per year with the broadcaster.
Aside from his media career, Neville is also a successful businessman.
He opened football-themed restaurant ‘Cafe Football’ in London in 2013 before opening ‘Hotel Football’ near to Old Trafford in 2015.
He is also part-owner of Salford City Football Club along with some of his ‘Class of 92’ team-mates.
Gary Neville honours
12 Premier League (1992-1993, 1993-1994, 1995-1996, 1996-1997, 1998-1999, 1999-2000, 2000-2001, 2002-2003, 2006-2007, 2007-2008, 2008-2009, 2010-2011)
2 Champions League (1998-1999, 2007-2008)
4 FA Cup (1993-1994, 1995-1996, 1998-1999, 2003-2004)
3 League Cup (2005-2006, 2008-2009, 2009-2010)
8 Community Shield (1993-1994, 1994-1995, 1996-1997, 1997-1998, 2003-2004, 2007-2008, 2008-2009, 2010-2011)
2 Club World Cup (2000, 2008)